CMS initial mark pauses

Osvaldo Doederlein opinali at
Fri Oct 15 15:40:07 UTC 2010

2010/10/15 Tony Printezis <tony.printezis at>:
>  Ismael,
> G1 is doing well reliability-wise. Performance-wise, sometimes we win,
> sometimes we don't over CMS. Give the latest version a try.

Would you detail this statement about "performance" (that's a big
overloaded word)? I guess G1 should always / almost always win in the
critical items of individual pause times and full-GC frequency; is
this already true or you expect that to be true soon?


> Tony
> On 10/14/2010 7:17 PM, Ismael Juma wrote:
>> Y. S. Ramakrishna<y.s.ramakrishna at ...>  writes:
>>> Or better still to move to G1 which is fully
>>> parallel and concurrent, and have other advantages as well.
>> Has G1 reached the state where you'd recommend it over CMS or do you think
>> it
>> needs a bit more time? If the latter, do you think that would change by
>> JDK 7
>> (according to the latest plan)? Thanks.
>> Best,
>> Ismael

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